GB2224404B - Residual current device - Google Patents

Residual current device

Info

Publication number
GB2224404B
GB2224404B GB8908385A GB8908385A GB2224404B GB 2224404 B GB2224404 B GB 2224404B GB 8908385 A GB8908385 A GB 8908385A GB 8908385 A GB8908385 A GB 8908385A GB 2224404 B GB2224404 B GB 2224404B
Authority
GB
United Kingdom
Prior art keywords
current device
residual current
residual
current
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB8908385A
Other versions
GB2224404A (en
GB8908385D0 (en
Inventor
Patrick Ward
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shakira Ltd
Original Assignee
Shakira Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shakira Ltd filed Critical Shakira Ltd
Publication of GB8908385D0 publication Critical patent/GB8908385D0/en
Publication of GB2224404A publication Critical patent/GB2224404A/en
Application granted granted Critical
Publication of GB2224404B publication Critical patent/GB2224404B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
    • H02H3/338—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers also responsive to wiring error, e.g. loss of neutral, break

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
GB8908385A 1988-10-25 1989-04-13 Residual current device Expired - Fee Related GB2224404B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE322488 1988-10-25

Publications (3)

Publication Number Publication Date
GB8908385D0 GB8908385D0 (en) 1989-06-01
GB2224404A GB2224404A (en) 1990-05-02
GB2224404B true GB2224404B (en) 1993-03-17

Family

ID=11038106

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8908385A Expired - Fee Related GB2224404B (en) 1988-10-25 1989-04-13 Residual current device

Country Status (2)

Country Link
GB (1) GB2224404B (en)
ZA (1) ZA892913B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4931893A (en) * 1989-04-19 1990-06-05 Square D Company Loss of neutral or ground protection circuit
GB9109477D0 (en) * 1991-05-02 1991-06-26 Mk Electric Ltd Electrical protection devices
GB2311177B (en) * 1996-03-13 2000-08-02 Crabtree Electrical Ind Ltd Residual current devices
ES2125204B1 (en) * 1997-07-08 1999-10-01 Iberdrola Sa NEUTRAL CONTINUITY SUPERVISION DEVICE AND SERVICE SURGE PROTECTION.
ES2155363B1 (en) * 1998-12-17 2001-11-16 Sanchez Pablo Garrido GENERAL PROTECTORS OF RISES OR VOLTAGES DOWN FOR NEUTRAL FAILURES OR OTHER CAUSES.
IE20010271A1 (en) * 2000-03-22 2001-10-03 Shakira Ltd Residual Current Device
GB2377834B (en) * 2001-05-31 2003-09-17 Shakira Ltd Residual current device
CN105954674A (en) * 2012-07-27 2016-09-21 胡小青 Detection device used for detecting electric leakage breaker
CN105699886A (en) * 2012-07-27 2016-06-22 胡小青 Improved type detection device having alternating current electric leakage adjusting circuit
CN105116321A (en) * 2012-07-27 2015-12-02 胡小青 Tester used for testing electric leakage breaker

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0154450A1 (en) * 1984-02-23 1985-09-11 Delta Electrical (Holdings) Limited Earth leakage protective circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0154450A1 (en) * 1984-02-23 1985-09-11 Delta Electrical (Holdings) Limited Earth leakage protective circuit

Also Published As

Publication number Publication date
GB2224404A (en) 1990-05-02
GB8908385D0 (en) 1989-06-01
ZA892913B (en) 1989-12-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990413